 | | Journal (article/letter/editorial) |
| the Kagem mine, the largest emerald mine in the world, in the Kafubu district, Copperbelt Province, Zambia...Zambia. This mine, which has been producing exceptional gem rough since the 1970s, has recently been the...green gemmy emerald crystals in white quartz matrix. Emerald was first discovered in the Kafubu area by the... Only small quantities of relatively mediocre emerald rough were produced from the 96*2: 405...9(3: Figure 1. A recent view of part of the Kagem mine showing subvertical pegmatite dike swarms in |
 | Ren, Junping, Wang, Jie, Zuo, Libo, Liu, Xiaoyang, Dai, Chaocheng, Xu, Kangkang, Li, Guozhan, Geng, Jianzhen, Xiao, Zhibin, Sun, Kai, He, Fuqing, Gu, ALei (2017) Zircon UāPb and biotite 40Ar/39Ar geochronology from the Anzan emerald deposit in Zambia. Ore Geology Reviews, 91. 612-619 doi:10.1016/j.oregeorev.2017.08.034 | Journal (article/letter/editorial) |
| and biotite deposit in Zambia 40 Ar/39Ar geochronology from the Anzan emerald ā Junping Rena, , Jie...Biotite 40Arā39Ar age Anzan emerald deposit Zambia The Kafubu Emerald Area in Zambia is an important producer...rock and emerald-hosting biotite chlorite schist from the Anzan emerald deposit in the Kafubu area, Zambia...chronology measurements of the country rock and emerald-hosting rock which belong to Muva Supergroup, yielding...redeļ¬ned the age of Muva Supergroup in the Copperbelt Province in Zambia to be older than or equal to 1966 Ā± |
 | | Journal (article/letter/editorial) |
| Gemological Characteristics of Emeralds from Kamakanga, Zambia Yi Zhang and Xiao-Yan Yu * School of Gemology,...Currently, Zambia is one of the worldās major emerald-producing countries. In this study, emerald samples...samples from Kamakanga, Zambia, were systematically analyzed by standard gemological tests, microscopic observation...Gemological Characteristics of Emeralds from Kamakanga, Zambia. Minerals 2023, 13, 341. https://doi.org/10.3390/...creativecommons.org/licenses/by/ 4.0/). 1. Introduction Emerald is a variety of beryl whose ideal formula is Be3 |
 | | Journal (article/letter/editorial) |
| consistent with a sedimentary source origin. Type IA emerald REE patterns have upturns in the heavy REE (La/YbCC...occurring in Archaean host rocks. Modeling of type IA emerald compositions indicates that they form from magmatic...crustal protoliths. This geochemical signature links emerald formation with continental suture zones. Diamonds...indicating that plate tectonic processes have led to emerald deposit formation since at least the Archaean....that is responsible for the vivid green color of emerald [2]. Emeralds are scarce commodities requiring |
 | | Journal (issue) |
| SPECIAL ISSUE December 2015 WORLD EMERALD UPDATE Highlights of Bogota Symposium Colombia opened its...worldās leading emerald experts from October 13-15. The First International Emerald Symposium was a huge...around the world taking part. More than 42 global emerald specialists from governments, labs and private...Fedesmeraldas, the Colombian Emerald Federation, and supported by all the countryās emerald-related bodies and...challenges and opportunities faced by the worldās emerald industry, including resource management, manufacturing |
 | | Journal (issue) |
| Special Emerald 2018 ā Issue 40 All About Colored Gemstones World Emerald Update Highlights of the...the Second World Emerald Symposium, BogotĆ” International Gemstone Association AColored Publication of the...Issue 40 ā« ×ā¬InColor 1 2 InColor ā« ×ā¬Special Emerald 2018 InColorMagazine.com; Gemstone.org International... Contents In Side 5 Special World Emerald Update Editorās Note World Emerald Challenge: Origins and Appellation...Appellation 16 The Second World Emerald Symposium in Colombia The Second World Emerald Symposium Focuses on Responsible |
 | | Journal (issue) |
| FEATURE ARTICLES 464 Geology of Corundum and Emerald Gem Deposits: A Review Gaston Giuliani and Lee...of the geology and genesis of gem corundum and emerald deposits. p. 569 512 A Review of Analytical...years, especially with the development of ruby mining in Mozambique. This contribution outlines GIAās... 637 614 Geographic Origin Determination of Emerald Sudarat Saeseaw, Nathan D. Renfro, Aaron C. Palke...Caplan. The back cover shows emeralds from the Chivor mine in Colombia (3.90 ct faceted stone and 2.35 cm crystal) |
 | | Journal (issue) |
| Ilaria Adamo, and Valeria Diella An update on the mining activity, production, and distribution of gem andradite...42 Aquamarine from the Thuong Xuan District, Thanh Hoa Province, Vietnam Le Thi-Thu Huong, Wolfgang...in doublets and jewelry ā¢ Diamond mining in Liberia ā¢ Zambian emerald update ā¢ Pargasite from Tanzania...from Mt. Marie, Maine ā¢ Imitations of trapiche emerald and rough nephrite ā¢ Non-nacreous pearl imitation...imitation ā¢ Plastic-coated quartz, imitating emerald ā¢ Lead glassāfilled trapiche ruby ā¢ Myanmar Gem Emporium |
 | | Journal (issue) |
| Garnet Deposits ā Demantoid Variety 48 Green Dragon Mine ā Demantoid from Namibia Branding Signature Colors...This is due in part to an increase in industrial mining. Extraction in various parts of the world has resulted...becomes a trend, something that is much uantities. Mining on an industrial scale also attracts investors...reflect phases of the gemstone industry, such as mining, production or trade. 6. In order to express the...said it will use master sets for ruby, sapphire, emerald, pink sapphire and yellow sapphire. The lab does |
 | | Journal (issue) |
| Marking of Gemstones ā An Overview of Options 86 Mining The Journey Towards Responsibility 94 Book Review...org Editorās Note Small-Scale and Artisanal Mining: The Other Responsible Sourcing President Clement...developed byāand forāa small number of mega gem-mining and jewelry conglomerates call for strict Western...development for local mining communities in emerging economies. Artisanal and small-scale mining accounts for...colored gemstone output, but well over 80% of active mining operations. It constitutes the core of the offering |
 | | Journal (issue) |
| Science? Ethical Mining and Fair Trade FabergƩ and Gemfields Create Fair Trade Emerald Necklace Gemology...Spinel and its Treatments: A Current Status Report Mining Sapphire Rush in Kataragama Jewelry Design Contemporary...determination, thus tracking gemstones from their mining locations. The success of a credible, transparent...eventually craze, the material from the Wollo Province region is considerably more stable. Francesco...the mining sites, Mazzero gave the GILC a descriptive visual tour of his travels into the mining district |
 | | Journal (issue) |
| THE MOST FROM YOUR EQUIPMENT. THATāS A CVA. In mining, equipment lifecycle management impacts your results...against premature wear damage in a wide range of mine and plant applications. New materials and designs...Mines E&MJ speaks to Trevor Kelly about the Canada Mining Innovation Councilās Alternative Haulage Project................. 34 Change Your Mind, Change Your Mine Advanced networks and communications solutions are.............................................. 40 Mining Industry in Cape Town Will Recover In an arid economic |
 | | Book |
| Trimouns quarry, Luzenac, Ariege. Operated for talc since the beginning of the 20th century, the Trimouns...crystalline talc. Easily the best extant crystal, a doubly terminated floater found in a talc vug in 1997...MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage |
